and then again there is the whole group of words, where the negative is still a frequently used word, but the positive is hardly ever used or very rarely.
sorry, as it has to be expected, no good examples come to mind …
ungehobelt <> gehobelt (ungehobelte Person) - literally transalted an unplaned person (as in unrefined) but there is no planed person unwirsch <> wirsch
thats an interesting one … there’s underwhelmed and overwhelmed … but as you mention no whelmed (does whelmed even exist?)
whelm: To cover completely with water or other fluid so as to ruin or destroy; to submerge, drown; occasionally to sink (a boat). [most recent citation 1888]
gruntle: To grumble, murmur, complain. (The dis- prefix in “disgruntled” is an intensifier.) [most recent citation 1876]
ruth: The quality of being compassionate; the feeling of sorrow for another; compassion, pity. [most recent citation 2005]
gome: Sense, wit, tact. Alternate spelling “gom”, “gawm”. “Gormless” was originally spelled “gawmless”. [most recent citation 1877, although that was in a dictionary]
apt: Natural tendency. Use as a noun was rare, derived from the adjective “apt”. [most recent citation c1400]
The non-negated forms are all perfectly valid words. To be fair, though, “transigent” is uncommon and is even omitted from some dictionaries. Google Ngram shows its usage hitting a peak in 1960 and again in 1998 for some strange reason, but its usage never exceeded 0.000000277%.
It’s interesting that those were the first examples. With the first two pairs, the non-negated form still exists as a common word, but they have diverged semantically - they are not semantic negations. A question can be impertinent but pertinent; it’s uncanny how canny she is.
That actually got used quite a bit here in Ohio in the 1960-70s as all the cities settled right after the War of 1812 became 150 years old. It has tapered off, of course.
The terms “ace”,”deuce”, “trey” are familiar, but did you know there are terms for the four, five and six on a die also? They are, respectively, “cater”, “cinque”, “sice”.